Control method for cleaning device, and cleaning device

A method for controlling a cleaning device to clean a wall, wherein the cleaning device moves in a target water region, and the method comprises:

• when the cleaning device cleans a first wall of the target water region, controlling the cleaning device to perform cleaning along a first cleaning path;
• controlling the cleaning device to move along the first cleaning path for a first target preset distance in a first direction or a second direction to a path switching position, wherein the first direction is a direction from the bottom of the target water region to a water surface of the target water region, and the second direction is a direction from the water surface of the target water region to the bottom of the target water region;
• controlling the cleaning device to move from the path switching position along a third path for preset duration or a second target preset distance to a starting position of a second cleaning path;
• and
• controlling the cleaning device to move along the second cleaning path in the first direction or the second direction to perform cleaning along the second cleaning path, wherein
• the third path is different from the first cleaning path, the second cleaning path is different from the first cleaning path and the third path, the second cleaning path is substantially parallel to the first cleaning path, the path switching position is a starting position at which the first cleaning path is switched to the second cleaning path, and the path switching position is away from the bottom of the first wall and a waterline of the target water region.